Patent · US Active

Filtered shadow mapping

US9761001B2 · kind B2 · utility

3Cited by

0References

30Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Magnus Andersson · Jönköping, SE
Jon N. Hasselgren · Bunkeflostrand, SE
Carl J. Munkberg · Malmö, SE
Tomas G. Akenine-Moller · Lund, SE

Key dates

Filing date	Dec 18, 2014
Grant date	Sep 12, 2017
Priority date	—
Expiry date	Feb 27, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06T2215/12
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A layered, filtered shadow mapping algorithm may be used for motion blurred shadows. The algorithm is divided into two passes, namely a shadow pass and a lighting pass. The shadow pass renders the scene using stochastic rasterization and generates a time-dependent shadow map augmented with per-sample motion vectors. The subsequent lighting pass renders the scene from the camera's point of view, and performs a shadow query for each sample seen from the camera.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.